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. 2019 Jul 4;12(13):2153. doi: 10.3390/ma12132153

Figure 14.

Figure 14

Distribution of equivalent stress (in MPa) under maximum displacement (left-hand side) and after unloading (right-hand side) state for the indentation depth of 0.05 mm and friction coefficients: (a) 0, (b) 0.1, (c) 0.2 and (d) 0.3.